new Vue({
    el: "#app",
    data: {

    },
    mounted() {
        this.Bubble();
    },
    methods: {
        Bubble() {
            document.querySelector(".banner-hd").onclick = function (event) {
                var ele = event.target;
                if (ele.nodeName == "A") {
                    var arr = document.querySelectorAll(".banner-hd a");
                    arr.forEach(element => {
                        element.classList.remove("curS");
                        element.classList.add("curU");

                    })
                    ele.classList.add("curS");
                }
            }
        },
    }
})